Keyphrases
- question answering
- question classification
- question answering systems
- qa clef
- answer extraction
- qa systems
- natural language questions
- answer validation
- candidate answers
- answering questions
- open domain question answering
- information retrieval
- natural language
- passage retrieval
- question answer pairs
- syntactic information
- named entities
- information extraction
- cross language
- natural language processing
- semantic roles
- correct answers
- multi modal
- cross lingual